Embryos And Ancestors

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Emphasizing the changes worked by circulation and copying, interpretation and debate, this book uses the case to explore how pictures succeed and fail, gain acceptance and spark controversy. It reveals how embryonic development was made a process that we can see, compare, and discuss, and how copying - usually dismissed as unoriginal

During the past ten years, there has been a revolution in our understanding of developmental biology, as scientists apply the ideas and techniques of genetics and embryology to the processes of development. In this book, John Maynard Smith gives an account of the progress that has been made in this field -- in our knowledge of both the development of individuals and the evolution of the species. Maynard Smith points out that there is a parallel between the developmental changes that convert an egg into an adult and the evolutionary changes converted simple single-celled ancestors into the existing array of multicellular animals and plants. Genetic studies provide the necessary link between development and evolution: natural selection explains how information is incorporated in the genome, and development shows what use is made of it during the development of each individual. Traditionally, two very different views have been held about development. Maynard Smith argues that the differences between them are not so much scientific as ideological -- one can be considered reductionist and the other holistic. But because of advances in the science underpinning both viewpoints, he says, the possibility of a dialogue between them is great, which will be beneficial to the entire discipline.

Bringing together conceptual obstacles and core concepts of evolutionary theory, this book presents evolution as straightforward and intuitive.

"From your brain to your fingertips, you emerge from her book entertained and with a deeper understanding of yourself" --Richard Dawkins Alice Roberts takes you on the most incredible journey, revealing your path from a single cell to a complex embryo to a living, breathing, thinking person. It's a story that connects us with our distant ancestors and an extraordinary, unlikely chain of events that shaped human development and left a mark on all of us. Alice Roberts uses the latest research to uncover the evolutionary history hidden in all of us, from the secrets found only in our embryos and genes - including why as embroyos we have what look like gills - to those visible in your anatomy. This is a tale of discovery, exploring why and how we have developed as we have. This is your story, told as never before.